On extremal perturbations of semi-Fredholm operators

DOI10.1007/BF01191854zbMath0864.47003OpenAlexW1983419464MaRDI QIDQ1814818

Yanyan Li

Publication date: 26 June 1997

Published in: Integral Equations and Operator Theory (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf01191854

zbMATH Keywords

finite rank operatorsemi-Fredholm domain

Mathematics Subject Classification ID

Perturbation theory of linear operators (47A55) (Semi-) Fredholm operators; index theories (47A53)

Related Items (1)

Extremal feedback perturbations for families of closed operators

Cites Work

• Perturbation theory for nullity, deficiency and other quantities of linear operators
• Economical finite rank perturbations of semi-Fredholm operators
• Uniformly regular families of commuting operators
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